# SDR SWAA2026021068258

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2026
- Submitted: February 10, 2026
- Operation: Air carrier
- Aircraft: [N7877H](https://openairdocs.org/aircraft/N7877H), registered now
- Make and model: Boeing 737-7Q8
- Registry model: [Boeing 737-7Q8](https://openairdocs.org/model/boeing-737-7q8) (OpenAirDocs)
- Aircraft serial: 29359
- Aircraft time: 61,602 hours, 34,154 cycles
- System (JASC): [5514 · Horizontal Stabilizer Miscellaneous Structure](https://openairdocs.org/jasc/5514)
- Part: Seal
- Condition: Cracked
- Location: Zone 300
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026021068258

## Discrepancy

RIGHT HORIZONTAL STAB FORWARD UPPER SLIDING SEAL HAS A 4 INCH VERTICAL CRACK PARALLEL TO THE FORWARD TRACK.   REMOVED AND REPLACED THE RT HORIZONTAL STAB FORWARD UPPER SLIDING SEAL IAW AMM 53-31-31.

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